In compressed state, a spring 3. 00 meters long hanging from the ceiling has a potential energy of 2. 0 joules. If the entire potential energy is used to release a ball of mass 1. 2 kilograms vertically downward, then what is the kinetic energy of the ball when it reaches the ground? a. 1. 2 joules b. 4. 9 joules c. 2. 0 joules d. 6. 8 joules.

If i got an 1040 on my psat, what are the chances of being able to get a 1400 on the sat. and are there any recommended ways to study.

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.

How did loftus interpret false memories? a. because of their desire to whoever is asking them about their memories people will often go along with what they want to hear b. eyewitness memories becomes faulty when we make errors in identifying the source of information we have stored in long term memory c. we accept subsequent misinformation as being correct, and this information becomes part of our memory for the original event d. when we retrieve a memory for a particular event from long-term memory, we also retrieve information from other sources relevant to the event